Wrench



UNITED STATES WM. BAXTER, OF NEWARK, NEW JERSEY.

WRENCH.

Specification of Letters Patent No. 14,221, dated February 12, 1856.

To all 'whom zi may concern Be it known that- I, WILLIAM BAXTER, of thecity of Newark, in the county of Essex and State of New Jersey, haveinvented a new and useful improvement in the construction of adjustablediagonal wrenches for screwing or unscrewing iron-work, &c.; and Ihereby declare the following` to be a full, clear, and exact descriptionof the construction and operation of the same, the accompanying drawingsbeing lettered to cor- -respond with and making a part of thisspecification, and in order that others may go on to manufacture and usemy improvement I will describe its construction and application asfollows:

Description-Figure l, is a birds eye view of t-he wrench when closed.Fig. 2, is another View of the wrench when opened to its widest point.

Letter (A) represents a metallic plate or upper half of the wrench,having a jaw (of a wrench,) at each end, as shown at (c, c) that standsobliquely to the shank, or han dle. The metallic plate (A) has aprojection or tongue at each end, as shown at Letter (A) represents thelower plate (or half) of the wrench, and also has a jaw at each end (e,c,) that corresponds with, and is opposite to, (c, c.) (A) has a groove(g) at each end to receive the project-ion or tongue, (f) on plate (A.)Hence by the application of the projection (or tongue) (f,) and thegroove (9,) I prevent my wrench from separating, (vertically,) at thesame time allowing itl to move in the direction of the groove (g) only,when operated upon by the screw, or other moving power, when applied athalf the distance between the jaws, and transversely across the plates,and parallel with the diagonal or end oints (2)) and consequently thejaws (c, and 6,) move parallel to each other, in a right line only, andc', and c) move parallel in a right line similar to the former (c, and6,) and the strength of the wrench is not dependent upon a small pin, orfulcrum, at the center of the handle, but upon the construction of thediagonal or end joints (b, and b,) (of the wrench,) having a tongue andgroove as above set forth; the large and small ends of the wrench open,and close, at the same time, and by the same moving power. You do nothave to turn one set screw to open the large end, and another, to openor close the smaller end, as is the case in Chestermans spanner, orscrew key.

I am aware that the dierent kinds of wrenches that have been used in thedifferent machine shops-the adjustable hammer wrench, the fixed Swrench, and various others, any of which is not susceptible of beingused for screwing the different nuts of many complicated machines, andthose that are adjustable cannot be brought into use on account of theirclumsiness, such as the hammer and many other wrenches. The only planadopted at present by the machinists when sending off an engine 0r otherwork, is to send a number of wrenches of different sizes to suit thenuts, but I can adapt my diagonal adjustable wrench to any or all thedifferent sizes of nuts by simply turning` a small thumb or set screw.

Description of dwmng--l4`igl, is a birds eye view of the adjustablediagonal wrench. Letter (A,) is the shank or handle. b,) are thediagonal or end joint-s. (c, c,) are the jaws of the wrench. (cl,) is athumb or set screw which is used to open or close the wrench.

Fig. 2, is a birds eye view showing the wrench opened exhibiting aportion of the screw, and the extension, of the jaws,

(c, c,). Letters (A A) is the shank or handle. (b, (3Q) are the diagonalor end joints. (c, c,) are the jaws of the wrench.

(Z) is a thumb or set screw, which is used to open or close the wrench.

Vhat I claim as my improvement in wrenches is Adjusting, and securingthe jaws (c, c,) and (e, e,) of a diagonal wrench, by means of the screw(65,) and joints (f,) (9,) as described.

In testimony whereof I hereunto subscribe my name in presence of twowitnesses.

`WILLIAM BAXTER. Witnesses WVM. R. HOWELL, JAMES P. MCLEAN.

